"int *" 类型的实参与 "const DWORD *" 类型的形参不兼容
/* -------------------------------------------------------------------MyWindows.c -- 基本窗口模型
《Windows 程序设计（SDK）》视频教程
--------------------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT("MyWindows");
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = WndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = szAppName;
if (!RegisterClass(&wndclass))
{
MessageBox(NULL, TEXT("这个程序需要在 Windows NT 才能执行！"), szAppName, MB_ICONERROR);
return 0;
}
hwnd = CreateWindow(szAppName,
TEXT("苏宁程序"),
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;
RECT rect;
POINT apt[] = { 50,20,20,60,80,60,50,20,70,20,100,60,130,20,70,20,150,20,150,60,190,60,190,20,150,20,};
int asz[] = { 4,4,5 };
switch (message)
{
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
PolyPolyline(hdc, apt, asz,3);
//LineTo(hdc, 100, 100);
EndPaint(hwnd, &ps);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd, message, wParam, lParam);
} int asz[] = { 4,4,5 }; 无法将参数转换为const DWORD 这个问题怎么解决！ 苏宁365 发表于 2020-3-11 16:47
int asz[] = { 4,4,5 }; 无法将参数转换为const DWORD 这个问题怎么解决！
加个强制转换就好啦 PolyPolyline(hdc, apt, (const DWORD*)asz, 3);
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