我正在尝试创建一个窗口,没有出现但我没有收到任何错误消息,除了我测试hWnd的那个。
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include "entity.h"
LRESULT CALLBACK WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message,wParam,lParam);
}
return 0;
}
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc= (WNDPROC)WndProc;
wcex.cbClsExtra= 0;
wcex.cbWndExtra= 0;
wcex.hInstance= hInstance;
wcex.hIcon= 0;
wcex.hCursor= LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground= (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName= 0;
wcex.lpszClassName= "Extt";
wcex.hIconSm= 0;
if(!RegisterClassEx(&wcex))
{
MessageBox(NULL, "FAILED TO REGISTER WINDOW CLASS", "ERROR", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
HWND hWnd = CreateWindow("WinD", "Chair", WS_OVERLAPPEDWINDOW, 480, 480, 480, 480, NULL, NULL, hInstance, NULL);
if (hWnd == NULL)
{
MessageBox(NULL, "FAILED TO CREATE WINDOW", "ERROR", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return (int)msg.wParam;
}
我只是不知道该怎么做。
我做了一切,就像那个人说的那样,我已经多次阅读并重新阅读了这个页面,并且无法理解为什么这样做不起作用。
答案 0 :(得分:2)
您的classname参数不匹配。如果您使用过GetLastError()
,则会返回1407,即:
ERROR_CANNOT_FIND_WND_CLASS
1407 (0x57F)
Cannot find window class.
将wcex.lpszClassName = "Extt";
更改为wcex.lpszClassName = "WinD";
或将第一个参数更改为CreateWindow
至"Extt"
。