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我现在画了一个窗体,但是奇怪的是任务栏的图标并没有显示成默认的图标,而是如下图:
:
下面是我的全部代码,请问有啥问题:
#include <windows.h>
#include <stdlib.h>
#include <string.h>
#include <tchar.h>
#include <stdio.h>
#include <GL/GL.h>
#pragma comment (lib,"kernel32.lib")
#pragma comment (lib,"user32.lib")
#pragma comment (lib,"opengl32.lib")
#pragma comment (lib,"Gdi32.lib")
LRESULT CALLBACK WndProc(HWND hWnd,UINT msg,WPARAM wPara,LPARAM lPara);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
MSG msg = {0};
WNDCLASSEX wc = {0};
wc.cbSize = sizeof(WNDCLASSEX);
wc.lpfnWndProc = WndProc;
wc.hInstance = GetModuleHandle(NULL);
wc.hbrBackground = (HBRUSH)(COLOR_BACKGROUND);
wc.lpszClassName = "Hello,world";
wc.style = CS_OWNDC;
wc.hCursor = LoadCursor(NULL,IDC_ARROW);
wc.hIcon = LoadIconW(wc.hInstance,MAKEINTRESOURCEW(IDI_APPLICATION));
wc.hIconSm = LoadIconW(wc.hInstance,MAKEINTRESOURCEW(IDI_APPLICATION));
if(!RegisterClassEx(&wc))
return 1;
CreateWindowW(L"Hello,World",L"Hello,World",WS_OVERLAPPEDWINDOW|WS_VISIBLE,0,0,640,480,0,0,hInstance,0);
while(GetMessage(&msg,NULL,0,0) > 0)
DispatchMessage(&msg);
return 0;
}
LRESULT CALLBACK WndProc(HWND hWnd,UINT msg,WPARAM wPara,LPARAM lPara)
{
switch(msg)
{
case WM_CREATE:
{
PIXELFORMATDESCRIPTOR pfd =
{
sizeof(PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
PFD_TYPE_RGBA,
32,
0,0,0,0,0,0,
0,
0,
0,
0,0,0,0,
24,
8,
0,
PFD_MAIN_PLANE,
0,
0,0,0
};
HDC ourWindowHandleToDeviceContext = GetDC(hWnd);
int letWindowChooseThisPixelFormat = ChoosePixelFormat(ourWindowHandleToDeviceContext,&pfd);
SetPixelFormat(ourWindowHandleToDeviceContext,letWindowChooseThisPixelFormat,&pfd);
HGLRC ourOpenGLRenderingContext = wglCreateContext(ourWindowHandleToDeviceContext);
wglMakeCurrent(ourWindowHandleToDeviceContext,ourOpenGLRenderingContext);
// printf("opengl version: %s\n",glGetString(GL_VERSION));
// MessageBoxA(0,(char*)glGetString(GL_VERSION),"OPENGL VERSION",0);
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd,msg,wPara,lPara);
break;
}
return 0;
}
黄舟2017-04-17 11:19:30
找到问题了,将LoadIcon的第一个参数设为NULL就好了.
附:官方文档上对第一个参数的解释:
A handle to an instance of the module whose executable file contains the icon to be loaded. This parameter must be NULL when a standard icon is being loaded.