C语言如何创建窗口

windows下通过调用API来创建窗口：#include<windows.h>int main(){ MessageBox(NULL,"Hello World!","C图形程序",MB_OK); return 0;}linux下通过调用图形库来创建窗口。楼主如果是学C的话，先不要急于搞这些东西，把基础打扎实才是最重要的，GUI可以后学。基础扎实了，这些只是很简单的东西。

#include <windows.h>
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("IOL");
HWND hwnd;
MSG msg;
WNDCLASSEX wndclassex = {0};
wndclassex.cbSize = sizeof(WNDCLASSEX);
wndclassex.style = CS_HREDRAW | CS_VREDRAW;
wndclassex.lpfnWndProc = WndProc;
wndclassex.cbClsExtra = 0;
wndclassex.cbWndExtra = 0;
wndclassex.hInstance = hInstance;
wndclassex.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wndclassex.hCursor = LoadCursor (NULL, IDC_ARROW);
wndclassex.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
wndclassex.lpszMenuName = NULL;
wndclassex.lpszClassName = szAppName;
wndclassex.hIconSm = wndclassex.hIcon;

if (!RegisterClassEx (&wndclassex))
{
MessageBox (NULL, TEXT ("RegisterClassEx failed!"), szAppName, MB_ICONERROR);
return 0;
}
hwnd = CreateWindowEx (WS_EX_OVERLAPPEDWINDOW,
szAppName,
TEXT ("WindowTitle"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL);

ShowWindow (hwnd, iCmdShow);
UpdateWindow (hwnd);

while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg);
DispatchMessage (&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
switch (message)
{
case WM_CREATE:
return (0);

case WM_PAINT:
hdc = BeginPaint (hwnd, &ps);
TextOut (hdc, 0, 0, "Hello World!", 12);
EndPaint (hwnd, &ps);
return (0);

case WM_DESTROY:
PostQuitMessage (0);
return (0);
}
return DefWindowProc (hwnd, message, wParam, lParam);
}

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