我在用Visual assist自动生成win32的框架代码时总是无法注册窗口类,望大家帮我看看.(系统winXP)
自动生成的代码如下
#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 ("");
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, "A Window!", 27);
EndPaint (hwnd, &ps);
return (0);
case WM_DESTROY:
PostQuitMessage (0);
return (0);
}
return DefWindowProc (hwnd, message, wParam, lParam);
}
自动生成的代码如下
#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 ("");
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, "A Window!", 27);
EndPaint (hwnd, &ps);
return (0);
case WM_DESTROY:
PostQuitMessage (0);
return (0);
}
return DefWindowProc (hwnd, message, wParam, lParam);
}
加上个字符
你的窗口为空,怎么注册啊。
就像你没有名字,怎么可以到公安局上户了,呵呵。随便取个名字就好了