質問編集履歴
1
画像とコードの誤りを直したことと試したことを書きました。
test
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File without changes
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test
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@@ -1,4 +1,4 @@
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私はDraw
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私はDrawIconExでアイコンを表示させたのですが、画質がとても悪すぎます。
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```C
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4
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@@ -50,7 +50,7 @@
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HWND hwnd;
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HBRUSH hBrush = CreateSolidBrush(RGB(
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HBRUSH hBrush = CreateSolidBrush(RGB(255,255,255));
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WNDCLASS winc;
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@@ -117,3 +117,179 @@
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環境は、MinGW-win32でコンパイル方法は、gcc -mwindows test.c test.oです。
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表示させたい画像
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でも実行すると、
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こうなります。
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試したこと
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138
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139
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BITMAPを使おうと思いましたが、なぜか画像が表示されません。
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リソーススクリプト
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```image.rc
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icon1 BITMAP "R.bmp"
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```
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```C
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#include <windows.h>
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155
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LRESULT CALLBACK WndProc(HWND hwnd , UINT msg , WPARAM wp , LPARAM lp) {
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158
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HDC hdc , hBuffer;
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PAINTSTRUCT ps;
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static HBITMAP hBitmap;
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166
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switch (msg) {
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case WM_DESTROY:
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DeleteObject(hBitmap);
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PostQuitMessage(0);
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return 0;
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case WM_CREATE:
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hBitmap = LoadBitmap(
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((LPCREATESTRUCT)lp)->hInstance ,
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TEXT("icon1")
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);
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return 0;
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case WM_PAINT:
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hdc = BeginPaint(hwnd , &ps);
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hBuffer = CreateCompatibleDC(hdc);
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SelectObject(hBuffer , hBitmap);
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BitBlt(hdc , 0 , 0 , 500 , 500 , hBuffer , 500 , 500 , SRCCOPY);
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DeleteDC(hBuffer);
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EndPaint(hwnd , &ps);
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return 0;
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}
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return DefWindowProc(hwnd , msg , wp , lp);
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}
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215
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int WINAPI WinMain(HINSTANCE hInstance , HINSTANCE hPrevInstance ,
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PSTR lpCmdLine , int nCmdShow ) {
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HWND hwnd;
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MSG msg;
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WNDCLASS winc;
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winc.style = CS_HREDRAW | CS_VREDRAW;
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winc.lpfnWndProc = WndProc;
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winc.cbClsExtra = winc.cbWndExtra = 0;
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winc.hInstance = hInstance;
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winc.hIcon = LoadIcon(NULL , IDI_APPLICATION);
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winc.hCursor = LoadCursor(NULL , IDC_ARROW);
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240
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241
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winc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
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242
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243
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winc.lpszMenuName = NULL;
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244
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245
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winc.lpszClassName = TEXT("test");
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246
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247
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248
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249
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if (!RegisterClass(&winc)) return -1;
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250
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251
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252
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253
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hwnd = CreateWindow(
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254
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255
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TEXT("test") , TEXT("icon") ,
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256
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257
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WS_OVERLAPPEDWINDOW | WS_VISIBLE ,
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258
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259
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CW_USEDEFAULT , CW_USEDEFAULT ,
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260
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261
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CW_USEDEFAULT , CW_USEDEFAULT ,
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262
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263
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NULL , NULL ,
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264
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265
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hInstance , NULL
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266
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267
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);
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268
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269
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270
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271
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if (hwnd == NULL) return -1;
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272
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273
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274
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275
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while(GetMessage(&msg , NULL , 0 , 0)) {
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276
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277
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TranslateMessage(&msg);
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278
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279
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DispatchMessage(&msg);
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280
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281
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}
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282
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283
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return msg.wParam;
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284
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285
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}
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286
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287
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```
|
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288
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+
|
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289
|
+
そして、DrawIconExを使わずDrawIconを使い、あとでStretchBltで拡大しようとしましたが、
|
|
290
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+
|
|
291
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+
画質が悪いまま。
|
|
292
|
+
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293
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+
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294
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+
|
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295
|
+
ほかにも方法がないか調べましたが、なにもありません。
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