#include<string.h>
#include<stdio.h>
#include<stdlib.h>
LRESULT CALLBACK WndProc(HWND ,UINT,WPARAM,LPARAM);
int WINAPI WinMain(HINSTANCE hInstance ,HINSTANCE hPrevInst,LPSTR lpszCmdLine,int nCmcShow)
{
HWND hwnd;
MSG Msg;
WNDCLASS wndclass;
char lpszClassName[]="基本绘图";
char lpszTitle[]="My_Drawing";
wndclass.style=0;
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=lpszClassName;
if(!RegisterClass(&wndclass))
{
MessageBeep(0);
}
hwnd=CreateWindow(
lpszClassName,
lpszTitle,
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 message,
WPARAM wParam,
LPARAM lParam
)
{
HDC hdc;
PAINTSTRUCT ps;
HPEN hP;
HBRUSH hB;
switch(message)
{
case WM_PAINT:
hdc=BeginPaint(hwnd ,&ps);
SetMapMode(hdc,MM_TEXT);
Rectangle(hdc,130,60,270,200);
hB=CreateHatchBrush(HS_CROSS,RGB(255,0,0));
SelectObject(hdc,hB);
Ellipse(hdc,130,70,270,190);
hP=CreatePen(PS_DASHDOT,1,RGB(0,255,0));
SelectObject(hdc,hP);
MoveToEx(hdc,100,130,NULL);
LineTo(hdc,300,130);
MoveToEx(hdc,200,30,NULL);
LineTo(hdc,200,230);
EndPaint(hwnd,&ps);
DeleteObject(hP);
DeleteObject(hB);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd ,message,wParam,lParam);
}
return 0;
}
Compiling...
ww.cpp
E:\VC\MSDev98\MyProjects\ww\ww.cpp(42) : error C2065: 'nCmdShow' : undeclared identifier
Error executing cl.exe.
ww.exe - 1 error(s), 0 warning(s)
10 个解决方案
#1
nCmdShow这个变量你从来没有定义过,怎么能用?
自己用一个合法的cmdshow值替换nCmdShow吧,例如换成SW_SHOWWINDOW
自己用一个合法的cmdshow值替换nCmdShow吧,例如换成SW_SHOWWINDOW
#2
WinMain(HINSTANCE hInstance ,HINSTANCE hPrevInst,LPSTR lpszCmdLine,int
nCmcShow)
改成nCmdShow
改成nCmdShow
#3
up
#4
nCmdShow用SW_SHOW代替!
#5
UP
#6
LZ会了吧
#7
int WINAPI WinMain(HINSTANCE hInstance ,HINSTANCE hPrevInst,LPSTR lpszCmdLine,int nCmcShow)
{
int nCmcShow -> int nCmdShow
{
int nCmcShow -> int nCmdShow
#8
搞定了
#9
2楼正解,WinMain里的参数写错
#10
这么低级的编程错误。。。。还有LZ的编程风格很要人命。。。
#1
nCmdShow这个变量你从来没有定义过,怎么能用?
自己用一个合法的cmdshow值替换nCmdShow吧,例如换成SW_SHOWWINDOW
自己用一个合法的cmdshow值替换nCmdShow吧,例如换成SW_SHOWWINDOW
#2
WinMain(HINSTANCE hInstance ,HINSTANCE hPrevInst,LPSTR lpszCmdLine,int
nCmcShow)
改成nCmdShow
改成nCmdShow
#3
up
#4
nCmdShow用SW_SHOW代替!
#5
UP
#6
LZ会了吧
#7
int WINAPI WinMain(HINSTANCE hInstance ,HINSTANCE hPrevInst,LPSTR lpszCmdLine,int nCmcShow)
{
int nCmcShow -> int nCmdShow
{
int nCmcShow -> int nCmdShow
#8
搞定了
#9
2楼正解,WinMain里的参数写错
#10
这么低级的编程错误。。。。还有LZ的编程风格很要人命。。。