我想用代码创建一个窗口 就从一个程序中摘录了一段创建创建串口的代码 结果编译通过 但是运行有错误 请大虾们看看怎么回事 或者帮忙写一段创建窗口的代码
#include <winsock2.h>
int WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
//注册窗口类
WNDCLASSEX wx;
WNDPROC WndProc;
wx.cbSize=sizeof(WNDCLASSEX);
wx.style=CS_HREDRAW|CS_VREDRAW;
wx.lpfnWndProc=WndProc;
wx.cbClsExtra=0;
wx.cbWndExtra=0;
wx.hInstance=hInstance;
wx.hIcon=NULL;
wx.hCursor=NULL;
wx.hbrBackground=NULL;
wx.lpszMenuName=NULL;
wx.lpszClassName="CHAT";
wx.hIconSm=NULL;
RegisterClassEx(&wx);
//创建程序主窗口
HWND hWnd=CreateWindow("CHAT","chat",WS_OVERLAPPEDWINDOW &~WS_MAXIMIZEBOX &~WS_THICKFRAME,
200,200,505,410,NULL,NULL,hInstance,NULL);
if(!hWnd)
return FALSE;
//显示窗口
ShowWindow(hWnd,nCmdShow);
UpdateWindow(hWnd);
}
这样做我是想了解创建窗口的函数CreateWindow或者CreateWindowEx具体用法和使用后的效果 。初学者
#include <winsock2.h>
int WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
//注册窗口类
WNDCLASSEX wx;
WNDPROC WndProc;
wx.cbSize=sizeof(WNDCLASSEX);
wx.style=CS_HREDRAW|CS_VREDRAW;
wx.lpfnWndProc=WndProc;
wx.cbClsExtra=0;
wx.cbWndExtra=0;
wx.hInstance=hInstance;
wx.hIcon=NULL;
wx.hCursor=NULL;
wx.hbrBackground=NULL;
wx.lpszMenuName=NULL;
wx.lpszClassName="CHAT";
wx.hIconSm=NULL;
RegisterClassEx(&wx);
//创建程序主窗口
HWND hWnd=CreateWindow("CHAT","chat",WS_OVERLAPPEDWINDOW &~WS_MAXIMIZEBOX &~WS_THICKFRAME,
200,200,505,410,NULL,NULL,hInstance,NULL);
if(!hWnd)
return FALSE;
//显示窗口
ShowWindow(hWnd,nCmdShow);
UpdateWindow(hWnd);
}
这样做我是想了解创建窗口的函数CreateWindow或者CreateWindowEx具体用法和使用后的效果 。初学者
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#include <windows.h> // For all that Windows stuff
LRESULT CALLBACK MainWndProc (HWND, UINT, WPARAM, LPARAM);
//======================================================================
// Program entry point
//
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow) {
WNDCLASS wc;
HWND hWnd;
MSG msg;
// Register application main window class.
wc.style = 0; // Window style
wc.lpfnWndProc = MainWndProc; // Callback function
wc.cbClsExtra = 0; // Extra class data
wc.cbWndExtra = 0; // Extra window data
wc.hInstance = hInstance; // Owner handle
wc.hIcon = NULL, // Application icon
wc.hCursor = LoadCursor (NULL, IDC_ARROW);// Default cursor
wc.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
wc.lpszMenuName = NULL; // Menu name
wc.lpszClassName = TEXT("MyClass"); // Window class name
if (RegisterClass (&wc) == 0) return -1;
// Create main window.
hWnd = CreateWindowEx(WS_EX_ACCEPTFILES, // Ex style flags
TEXT("MyClass"), // Window class
TEXT("Hello"), // Window title
// Style flags
WS_VISIBLE | WS_CAPTION | WS_SYSMENU,
CW_USEDEFAULT, // x position
CW_USEDEFAULT, // y position
CW_USEDEFAULT, // Initial width
CW_USEDEFAULT, // Initial height
NULL, // Parent
NULL, // Menu, must be null
hInstance, // Application instance
NULL); // Pointer to create
// parameters
if (!IsWindow (hWnd)) return -2; // Fail code if not created.
// Standard show and update calls
ShowWindow (hWnd, nCmdShow);
UpdateWindow (hWnd);
// Application message loop
while (GetMessage (&msg, NULL, 0, 0)) {
TranslateMessage (&msg);
DispatchMessage (&msg);
}
// Instance cleanup
return msg.wParam;
}
//======================================================================
// MainWndProc - Callback function for application window
//
LRESULT CALLBACK MainWndProc (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
PAINTSTRUCT ps;
RECT rect;
HDC hdc;
switch (wMsg) {
case WM_PAINT:
// Get the size of the client rectangle
GetClientRect (hWnd, &rect);
hdc = BeginPaint (hWnd, &ps);
DrawText (hdc, TEXT ("Hello Windows!"), -1, &rect,
DT_CENTER | DT_VCENTER | DT_SINGLELINE);
EndPaint (hWnd, &ps);
return 0;
case WM_DESTROY:
PostQuitMessage (0);
break;
}
return DefWindowProc (hWnd, wMsg, wParam, lParam);
}