Create drawbitmap.c

graphics/drawbitmap.c

@@ -0,0 +1,82 @@
+#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"Draw Bitmap";
+    wc.hInstance     = hInstance;
+    wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
+    wc.lpfnWndProc   = WndProc;
+    wc.hCursor       = LoadCursor(0, IDC_ARROW);
+
+    RegisterClassW(&wc);
+    CreateWindowW(wc.lpszClassName, L"Draw Bitmap",
+          WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+          100, 100, 280, 220, 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) {
+
+    static HBITMAP hBitmap;
+    HDC hdc;
+    PAINTSTRUCT ps;
+    BITMAP bitmap;
+    HDC hdcMem;
+    HGDIOBJ oldBitmap;
+
+    switch(msg) {
+
+        case WM_CREATE:
+     
+             hBitmap = (HBITMAP) LoadImageW(NULL, L"C:\\prog\\slovakia.bmp", 
+                        IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
+
+             if (hBitmap == NULL) {
+                 MessageBoxW(hwnd, L"Failed to load image", L"Error", MB_OK); 
+             }
+
+             break;      
+
+        case WM_PAINT:
+        
+             hdc = BeginPaint(hwnd, &ps);
+
+             hdcMem = CreateCompatibleDC(hdc);
+             oldBitmap = SelectObject(hdcMem, hBitmap);
+
+             GetObject(hBitmap, sizeof(bitmap), &bitmap);
+             BitBlt(hdc, 5, 5, bitmap.bmWidth, bitmap.bmHeight, 
+                 hdcMem, 0, 0, SRCCOPY);
+
+             SelectObject(hdcMem, oldBitmap);
+             DeleteDC(hdcMem);
+
+             EndPaint(hwnd, &ps);
+
+             break;
+
+        case WM_DESTROY:
+
+            DeleteObject(hBitmap);
+            PostQuitMessage(0);
+            
+            return 0;
+    }
+
+    return DefWindowProcW(hwnd, msg, wParam, lParam);
+}