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https://gitea.nishi.boats/pyrite-dev/milsko
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git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@110 b9cfdab3-6d41-4d17-bbe4-086880011989
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NishiOwO
310
src/backend/gdi.c
Normal file
310
src/backend/gdi.c
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/* $Id$ */
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#include <Mw/Milsko.h>
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typedef struct userdata {
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MwLL ll;
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WNDPROC old;
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} userdata_t;
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static LRESULT CALLBACK wndproc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp) {
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userdata_t* u = (userdata_t*)GetWindowLongPtr(hWnd, GWLP_USERDATA);
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if(u == NULL) return DefWindowProc(hWnd, msg, wp, lp);
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if(msg == WM_PAINT) {
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PAINTSTRUCT ps;
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RECT rc;
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HBITMAP hbmp;
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HDC dc, hbdc;
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if(u->ll->copy_buffer) {
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GetClientRect(hWnd, &rc);
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dc = GetDC(hWnd);
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hbmp = CreateCompatibleBitmap(dc, rc.right - rc.left, rc.bottom - rc.top);
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hbdc = CreateCompatibleDC(dc);
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SelectObject(hbdc, hbmp);
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ReleaseDC(hWnd, dc);
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u->ll->hDC = hbdc;
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MwLLDispatch(u->ll, draw, NULL);
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dc = BeginPaint(hWnd, &ps);
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StretchBlt(dc, 0, 0, rc.right - rc.left, rc.bottom - rc.top, hbdc, 0, 0, rc.right - rc.left, rc.bottom - rc.top, SRCCOPY);
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EndPaint(hWnd, &ps);
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DeleteDC(hbdc);
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DeleteObject(hbmp);
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} else {
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u->ll->hDC = BeginPaint(hWnd, &ps);
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MwLLDispatch(u->ll, draw, NULL);
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EndPaint(hWnd, &ps);
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}
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} else if(msg == WM_LBUTTONDOWN) {
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MwPoint p;
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p.x = LOWORD(lp);
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p.y = HIWORD(lp);
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SetCapture(hWnd);
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MwLLDispatch(u->ll, down, &p);
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InvalidateRect(hWnd, NULL, FALSE);
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} else if(msg == WM_LBUTTONUP) {
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MwPoint p;
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p.x = LOWORD(lp);
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p.y = HIWORD(lp);
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SetCapture(NULL);
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MwLLDispatch(u->ll, up, &p);
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InvalidateRect(hWnd, NULL, FALSE);
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} else if(msg == WM_SIZE) {
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MwLLDispatch(u->ll, resize, NULL);
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} else if(msg == WM_ERASEBKGND) {
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return 1;
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} else if(msg == WM_NCHITTEST) {
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return HTCLIENT;
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} else if(msg == WM_DESTROY) {
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MwLLDispatch(u->ll, close, NULL);
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PostQuitMessage(0);
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} else if(msg == WM_CLOSE) {
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DestroyWindow(hWnd);
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} else {
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return (u->old == NULL) ? DefWindowProc(hWnd, msg, wp, lp) : CallWindowProc(u->old, hWnd, msg, wp, lp);
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}
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return 0;
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}
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MwLL MwLLCreate(MwLL parent, int x, int y, int width, int height) {
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MwLL r = malloc(sizeof(*r));
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userdata_t* u = malloc(sizeof(*u));
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WNDCLASSEX wc;
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memset(&wc, 0, sizeof(wc));
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wc.cbSize = sizeof(WNDCLASSEX);
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wc.style = CS_HREDRAW | CS_VREDRAW;
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wc.lpfnWndProc = wndproc;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = 0;
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wc.hInstance = (HINSTANCE)GetModuleHandle(NULL);
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wc.lpszClassName = "milsko";
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wc.lpszMenuName = NULL;
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wc.hCursor = LoadCursor(NULL, IDC_ARROW);
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wc.hbrBackground = GetSysColorBrush(COLOR_MENU);
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wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
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wc.hIconSm = NULL;
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MwLLCreateCommon(r);
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RegisterClassEx(&wc);
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r->copy_buffer = 1;
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r->hWnd = CreateWindow(parent == NULL ? "milsko" : "STATIC", "Milsko", parent == NULL ? (WS_OVERLAPPEDWINDOW) : (WS_CHILD | WS_VISIBLE), x, y, width, height, parent == NULL ? NULL : parent->hWnd, 0, wc.hInstance, NULL);
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u->ll = r;
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if(parent == NULL) {
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u->old = NULL;
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} else {
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u->old = (WNDPROC)SetWindowLongPtr(r->hWnd, GWLP_WNDPROC, (LONG_PTR)wndproc);
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}
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SetWindowLongPtr(r->hWnd, GWLP_USERDATA, (LONG_PTR)u);
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if(parent == NULL) {
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RECT rc;
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rc.left = 0;
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rc.top = 0;
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rc.right = width;
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rc.bottom = height;
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AdjustWindowRect(&rc, GetWindowLongPtr(r->hWnd, GWL_STYLE), FALSE);
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SetWindowPos(r->hWnd, NULL, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top, SWP_NOMOVE);
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ShowWindow(r->hWnd, SW_NORMAL);
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UpdateWindow(r->hWnd);
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InvalidateRect(r->hWnd, NULL, FALSE);
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}
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return r;
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}
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void MwLLDestroy(MwLL handle) {
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MwLLDestroyCommon(handle);
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DestroyWindow(handle->hWnd);
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free(handle);
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}
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void MwLLPolygon(MwLL handle, MwPoint* points, int points_count, MwLLColor color) {
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POINT* p = malloc(sizeof(*p) * points_count);
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HPEN pen = CreatePen(PS_NULL, 0, RGB(0, 0, 0));
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int i;
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for(i = 0; i < points_count; i++) {
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p[i].x = points[i].x;
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p[i].y = points[i].y;
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}
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SelectObject(handle->hDC, color->brush);
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SelectObject(handle->hDC, pen);
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SetPolyFillMode(handle->hDC, ALTERNATE);
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Polygon(handle->hDC, p, points_count);
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DeleteObject(pen);
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free(p);
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}
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MwLLColor MwLLAllocColor(MwLL handle, int r, int g, int b) {
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MwLLColor c = malloc(sizeof(*c));
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HDC dc = GetDC(handle->hWnd);
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if(r > 255) r = 255;
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if(g > 255) g = 255;
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if(b > 255) b = 255;
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if(r < 0) r = 0;
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if(g < 0) g = 0;
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if(b < 0) b = 0;
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c->brush = CreateSolidBrush(GetNearestColor(dc, RGB(r, g, b)));
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c->red = r;
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c->green = g;
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c->blue = b;
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ReleaseDC(handle->hWnd, dc);
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return c;
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}
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void MwLLFreeColor(MwLLColor color) {
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DeleteObject(color->brush);
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free(color);
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}
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void MwLLGetXYWH(MwLL handle, int* x, int* y, unsigned int* w, unsigned int* h) {
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RECT rc;
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GetClientRect(handle->hWnd, &rc);
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MapWindowPoints(handle->hWnd, GetParent(handle->hWnd), (LPPOINT)&rc, 2);
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*x = rc.left;
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*y = rc.top;
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*w = rc.right - rc.left;
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*h = rc.bottom - rc.top;
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}
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void MwLLSetXY(MwLL handle, int x, int y) {
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SetWindowPos(handle->hWnd, NULL, x, y, 0, 0, SWP_NOSIZE);
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InvalidateRect(handle->hWnd, NULL, FALSE);
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}
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void MwLLSetWH(MwLL handle, int w, int h) {
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SetWindowPos(handle->hWnd, NULL, 0, 0, w, h, SWP_NOMOVE);
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InvalidateRect(handle->hWnd, NULL, FALSE);
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}
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void MwLLSetTitle(MwLL handle, const char* title) {
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SetWindowText(handle->hWnd, title);
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}
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int MwLLPending(MwLL handle) {
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MSG msg;
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(void)handle;
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return PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ? 1 : 0;
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}
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void MwLLNextEvent(MwLL handle) {
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MSG msg;
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(void)handle;
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while(PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
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GetMessage(&msg, NULL, 0, 0);
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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void MwLLSleep(int ms) {
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Sleep(ms);
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}
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MwLLPixmap MwLLCreatePixmap(MwLL handle, unsigned char* data, int width, int height) {
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MwLLPixmap r = malloc(sizeof(*r));
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HDC dc = GetDC(handle->hWnd);
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BITMAPINFOHEADER bmih;
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RGBQUAD* quad = NULL;
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int y, x;
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r->width = width;
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r->height = height;
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bmih.biSize = sizeof(bmih);
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bmih.biWidth = width;
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bmih.biHeight = -(LONG)height;
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bmih.biPlanes = 1;
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bmih.biBitCount = 32;
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bmih.biCompression = BI_RGB;
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bmih.biSizeImage = 0;
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bmih.biXPelsPerMeter = 0;
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bmih.biYPelsPerMeter = 0;
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bmih.biClrUsed = 0;
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bmih.biClrImportant = 0;
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r->hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, (void**)&quad, NULL, (DWORD)0);
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for(y = 0; y < height; y++) {
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for(x = 0; x < width; x++) {
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RGBQUAD* q = &quad[y * width + x];
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unsigned char* px = &data[(y * width + x) * 4];
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q->rgbRed = px[0];
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q->rgbGreen = px[1];
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q->rgbBlue = px[2];
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}
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}
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ReleaseDC(handle->hWnd, dc);
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return r;
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}
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void MwLLDestroyPixmap(MwLLPixmap pixmap) {
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DeleteObject(pixmap->hBitmap);
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free(pixmap);
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}
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void MwLLDrawPixmap(MwLL handle, MwRect* rect, MwLLPixmap pixmap) {
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HDC hmdc = CreateCompatibleDC(handle->hDC);
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SelectObject(hmdc, pixmap->hBitmap);
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SetStretchBltMode(handle->hDC, HALFTONE);
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StretchBlt(handle->hDC, rect->x, rect->y, rect->width, rect->height, hmdc, 0, 0, pixmap->width, pixmap->height, SRCCOPY);
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DeleteDC(hmdc);
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}
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void MwLLSetIcon(MwLL handle, MwLLPixmap pixmap) {
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ICONINFO ii;
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HICON ico;
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HBITMAP mask;
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mask = CreateBitmap(pixmap->width, pixmap->height, 1, 1, NULL);
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memset(&ii, 0, sizeof(ii));
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ii.fIcon = TRUE;
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ii.xHotspot = 0;
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ii.yHotspot = 0;
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ii.hbmMask = mask;
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ii.hbmColor = pixmap->hBitmap;
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ico = CreateIconIndirect(&ii);
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DeleteObject(mask);
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SetClassLongPtr(handle->hWnd, GCLP_HICON, (LPARAM)ico);
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DestroyIcon(ico);
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}
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