[英]C++ winApi cannot handle child window events
因此,我有兩個功能。 第一個用於處理父事件,第二個用於處理子事件。 只是一個簡單的方法。
// Parent
LONG WINAPI WndProc(HWND hwnd, UINT Message,
WPARAM wparam, LPARAM lparam) {
// задаются пользователем, по идее.
HDC hdc;
PAINTSTRUCT ps;
switch (Message) {
case WM_LBUTTONDOWN:
{
ShowWindow(hChildWnd, SW_SHOW | SW_SHOWNORMAL);
UpdateWindow(hChildWnd);
}
break;
case WM_COMMAND:
switch (lparam) {
case 300:
showNotification(L"Hey"); // not working???
break;
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, Message, wparam, lparam);
}
return 0;
}
// Child
LONG WINAPI WndProc1(HWND hwnd, UINT Message,
WPARAM wparam, LPARAM lparam) {
switch (Message) {
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_COMMAND:
switch (lparam) {
case 300:
showNotification(L"Hey"); // not working???
break;
}
break;
default:
return DefWindowProc(hwnd, Message, wparam, lparam);
}
return 0;
}
當然,我在WinMain
函數中創建,注冊類並初始化這些窗口:
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
MSG msg;
// parent
WNDCLASS wc;
memset(&wc, 0, sizeof(WNDCLASS));
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.hInstance = hInstance;
wc.hbrBackground = CreateSolidBrush(0x00FFFFFF);
wc.lpszClassName = L"My Class";
RegisterClass(&wc);
// Child
WNDCLASS wcChild1;
memset(&wcChild1, 0, sizeof(WNDCLASS));
wcChild1.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wcChild1.lpfnWndProc = (WNDPROC)WndProc1;
wcChild1.hInstance = hInstance;
wcChild1.hbrBackground = CreateSolidBrush(0x00FFFFFF);
wcChild1.lpszClassName = L"My Dialog Class";
RegisterClass(&wcChild1);
hWnd = CreateWindowW(L"My Class", L"График функции loga(x)",
WS_OVERLAPPEDWINDOW,
00, 00, 1366, 768, NULL, NULL,
hInstance, NULL);
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
hChildWnd = CreateWindowW(
L"My Dialog Class", L"Диалог",
WS_OVERLAPPED | WS_CAPTION,
10,
10,
90,
170,
NULL,
NULL,
hInstance,
NULL);
HWND hButton1 = CreateWindow(_T("button"), _T("OK"), WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON ,
10,//x
90,//y
80,//width
30,//height
hChildWnd,
(HMENU)300,//id кнопки
hInstance, NULL);
ShowWindow(hChildWnd, SW_HIDE);
UpdateWindow(hChildWnd);
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
但是我無法在WndProc1
處理此click事件。 在WndProc
中也是如此。 我的調試器只是繞過我的WM_COMMAND
case
條目。 也許我用錯誤的名稱注冊了課程? 不,我復制粘貼了它們。 我用谷歌搜索,但沒有找到答案。 請幫忙。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.