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Windows-API-examples/graphics/custombrush.c

77 lines
1.8 KiB

#include <windows.h>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
PWSTR lpCmdLine, int nCmdShow) {
MSG msg;
WNDCLASSW wc = {0};
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpszClassName = L"Custom brush";
wc.hInstance = hInstance;
wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
wc.lpfnWndProc = WndProc;
wc.hCursor = LoadCursor(0, IDC_ARROW);
RegisterClassW(&wc);
CreateWindowW(wc.lpszClassName, L"Custom brush",
WS_OVERLAPPEDWINDOW | WS_VISIBLE,
100, 100, 300, 200, NULL, NULL, hInstance, NULL);
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return (int) msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam) {
HDC hdc;
PAINTSTRUCT ps;
static HBITMAP hBtm;
UINT bits[8] = { 0x111111ff, 0xffffffff, 0xffffffff, 0xffffffff,
0x00000000, 0x00000000, 0x00000000, 0x00000000 };
switch(msg) {
case WM_CREATE:
hBtm = CreateBitmap(8, 8, 1, 1, (LPBYTE) bits);
break;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
HBRUSH hCustomBrush = CreatePatternBrush(hBtm);
HBRUSH hOldBrush = SelectObject(hdc, hCustomBrush);
SelectObject(hdc, GetStockObject(NULL_PEN));
Rectangle(hdc, 20, 20, 250, 160);
SelectObject(hdc, hOldBrush);
DeleteObject(hCustomBrush);
SelectObject(hdc, GetStockObject(BLACK_PEN));
EndPaint(hwnd, &ps);
break;
case WM_DESTROY:
DeleteObject(hBtm);
PostQuitMessage(0);
return 0;
}
return DefWindowProcW(hwnd, msg, wParam, lParam);
}