基于api创建一个windows窗口程序在创建的窗口程序中资源编辑视图添加一个字符串并loadstring载入到程序内并在WM_PAINT消息中使用drawtext显示;请写的简单一点
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创建一个空的Windows窗口程序,并使用资源编辑视图添加一个字符串资源。
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在窗口程序的WinMain函数中,使用LoadString函数将字符串资源加载到程序内存中。
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在窗口程序的WndProc函数中,处理WM_PAINT消息,并使用DrawText函数将加载的字符串绘制到窗口上。
以下是代码示例:
#include <Windows.h>
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
HWND hwnd;
MSG msg;
WNDCLASS wc = { 0 };
wc.lpszClassName = TEXT("MyWindowClass");
wc.hInstance = hInstance;
wc.lpfnWndProc = WndProc;
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
RegisterClass(&wc);
hwnd = CreateWindow(wc.lpszClassName, TEXT("My Window"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);
ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
static TCHAR szText[256];
PAINTSTRUCT ps;
HDC hdc;
switch (msg)
{
case WM_CREATE:
LoadString(GetModuleHandle(NULL), IDS_MYSTRING, szText, sizeof(szText) / sizeof(TCHAR));
break;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
DrawText(hdc, szText, -1, &ps.rcPaint, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
EndPaint(hwnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, msg, wParam, lParam);
}
return 0;
}
``
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