怎样把文字闪起来？

Question

自己定制了一个文本标签，根据文本的个数填充整个标签框，想让标签框的每个文字按照红绿蓝闪起来，在WM_TIMER 绘制中未每个标签做了个定时器，想调用TimerProc函数让那些文字闪起来，但是效果没有出来，不知问题在哪，请大家指点，还有如果可以闪的话多个标签框公用那个 K 感觉有得问题，不知如何改好？
#include <windows.h>COLORREF color[3] = { RGB(255,0,0) ,RGB(0,255,0),RGB(0,0,255)};
HINSTANCE hInst;
int k=1;VOID CALLBACK TimerProc( HWND hwnd, UINT uMsg, UINT_PTR idEvent,  DWORD dwTime);
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR  lpCmdLine,int nCmdShow)
{
MSG msg;
WNDCLASSEX wcex;

wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = 0;
wcex.hCursor = 0;
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = 0;
wcex.lpszClassName ="mywin";
wcex.hIconSm = 0; RegisterClassEx(&wcex);
CreateWindow("mywin", "", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
      0, 0, 1000, 600, NULL, NULL, hInstance, NULL); while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
} return 0;
}LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
/*int wmId, wmEvent;*/
PAINTSTRUCT ps;
HDC hdc;
char data[30];
int r;
int lw,lh;//控件大少
int fw,fh;//字体大小
int i;
RECT rect;
HFONT hfont;
HINSTANCE hInst =GetModuleHandle(0); switch (message)
{

case WM_DRAWITEM:
DRAWITEMSTRUCT *dis;

dis = (LPDRAWITEMSTRUCT) lParam;
if ( dis->CtlType == ODT_STATIC )
{
rect = dis->rcItem;
lw = dis->rcItem.right - dis->rcItem.left;
lh = dis->rcItem.bottom - dis->rcItem.top;
fh = lh; r = GetWindowText(dis->hwndItem,data,30);
data[r] = 0 ;
fw = lw/r;
hfont = CreateFont ( fh,fw,0,0,700,FALSE,FALSE,FALSE,
GB2312_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY,DEFAULT_PITCH,"myf");
hfont =(HFONT) SelectObject ( dis->hDC,hfont);
SetBkMode ( dis->hDC,TRANSPARENT);
rect.right = rect.left + 2*fw;
for(i=0;i<r;++i)
{

SetTextColor ( dis->hDC,color[i%3]);
DrawText( dis->hDC,data+2*i,2,&rect,DT_BOTTOM  );
rect.left += 2*fw;
rect.right += 2*fw;
}
hfont =(HFONT) SelectObject ( dis->hDC,hfont);
DeleteObject(hfont);
SetTimer(dis->hwndItem,100,1000,TimerProc);
}
break;
case WM_CREATE:

CreateWindowA("STATIC","定制标签示例",WS_CHILD | WS_VISIBLE | SS_OWNERDRAW,
0,0,100,50,hWnd,0,hInst,0);
CreateWindowA("STATIC","标准标签",WS_CHILD | WS_VISIBLE ,
0,50,100,50,hWnd,0,hInst,0);
CreateWindowA("STATIC","12345678901234567890",WS_CHILD | WS_VISIBLE | SS_OWNERDRAW,
300,50,500,400,hWnd,0,hInst,0);

break;
//case WM_COMMAND:
// wmId    = LOWORD(wParam);
// wmEvent = HIWORD(wParam);
// // 分析菜单选择:
// switch (wmId)
// {
//
// default:
// return DefWindowProc(hWnd, message, wParam, lParam);
// }
// break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// TODO: 在此添加任意绘图代码...
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}VOID CALLBACK TimerProc( HWND hwnd, UINT uMsg, UINT_PTR idEvent,  DWORD dwTime)
{
PAINTSTRUCT ps;
HDC hdc;
RECT rect;
HFONT hfont;
char data[32];
int r;
int fw,fh;
int i; r = GetWindowText(hwnd,data,30);
data[r] = 0;
hdc = BeginPaint(hwnd,&ps);
GetClientRect(hwnd,&rect);
fw = (rect.right - rect.left)/r;
fh = rect.bottom -rect.top ;
hfont = CreateFont ( fh,fw,0,0,700,FALSE,FALSE,FALSE,
GB2312_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY,DEFAULT_PITCH,"myf");
hfont =(HFONT) SelectObject (hdc,hfont);
SetBkMode ( hdc,TRANSPARENT);
rect.right = rect.left + 2*fw;
for(i=0;i<r;++i)
{

SetTextColor ( hdc,color[(k+i)%3]);
DrawText( hdc,data+2*i,2,&rect,DT_BOTTOM  );
rect.left += 2*fw;
rect.right += 2*fw;
}
hfont =(HFONT) SelectObject ( hdc,hfont);
DeleteObject(hfont);
EndPaint(hwnd,&ps);
++k;
}

Answer 1

SetTimer();在OnTimer中改变颜色，然后调用InvalidateRect刷新
OnPaint中SetTextColor()然后DrawText

Answer 2

OnTimer 和  OnPaint  是MFC 中的函数吗？？ 2楼的大哥可以说明白一点吗，小弟不是很明白，我这个使用c写的

Answer 3

简单帮你改了一下
你看看是不是你想要的效果
另外
你要是想每个标签变色相对独立那么可以考虑利用DRAWITEMSTRUCT的itemData参数
#include <windows.h>COLORREF color[3] = { RGB(255,0,0) ,RGB(0,255,0),RGB(0,0,255)};
HINSTANCE hInst;
int k=1;VOID CALLBACK TimerProc( HWND hwnd, UINT uMsg, UINT_PTR idEvent,  DWORD dwTime);
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR  lpCmdLine,int nCmdShow)
{
    MSG msg;
    WNDCLASSEX wcex;
    
    wcex.cbSize = sizeof(WNDCLASSEX);
    wcex.style = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc = WndProc;
    wcex.cbClsExtra = 0;
    wcex.cbWndExtra = 0;
    wcex.hInstance = hInstance;
    wcex.hIcon = 0;
    wcex.hCursor = 0;
    wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName = 0;
    wcex.lpszClassName = "mywin";
    wcex.hIconSm = 0;    RegisterClassEx(&wcex);
    CreateWindow("mywin", "", WS_OVERLAPPEDWINDOW | WS_VISIBLE, 0, 0, 1000, 600, NULL, NULL, hInstance, NULL);    while(GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }    return 0;
}LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    /*int wmId, wmEvent;*/
    PAINTSTRUCT ps;
    HDC hdc;
    char data[30];
    int r;
    int lw,lh;//控件大少
    int fw,fh;//字体大小
    int i;
    RECT rect;
    HFONT hfont;
    HINSTANCE hInst = GetModuleHandle(0);    switch(message)
    {
    
    case WM_DRAWITEM:
DRAWITEMSTRUCT *dis;        dis = (LPDRAWITEMSTRUCT) lParam;
        if(dis->CtlType == ODT_STATIC )
        {
            rect = dis->rcItem;
            lw = dis->rcItem.right - dis->rcItem.left;
            lh = dis->rcItem.bottom - dis->rcItem.top;
            fh = lh;            r = GetWindowText(dis->hwndItem,data,30);
            data[r] = 0 ;
            fw = lw/r;
            hfont = CreateFont ( fh,fw,0,0,700,FALSE,FALSE,FALSE,
                GB2312_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,
                DEFAULT_QUALITY,DEFAULT_PITCH,"myf");
            hfont = (HFONT) SelectObject ( dis->hDC,hfont);
            SetBkMode( dis->hDC, TRANSPARENT);
            rect.right = rect.left + 2*fw;
            for(i=0; i<r; ++i)
            {
                
                SetTextColor( dis->hDC,color[(i+k)%3]);
                DrawText(dis->hDC, data+2*i, 2, &rect,DT_BOTTOM);
                rect.left += 2*fw;
                rect.right += 2*fw;
            }
            hfont =(HFONT) SelectObject ( dis->hDC,hfont);
            DeleteObject(hfont);
            SetTimer(dis->hwndItem,100,1000,TimerProc);
        }
        break;
    case WM_CREATE:
        
        CreateWindowA("STATIC","定制标签示例",WS_CHILD | WS_VISIBLE | SS_OWNERDRAW,
                            0,0,100,50,hWnd,0,hInst,0);
        CreateWindowA("STATIC","标准标签",WS_CHILD | WS_VISIBLE ,
                            0,50,100,50,hWnd,0,hInst,0);
        CreateWindowA("STATIC","12345678901234567890",WS_CHILD | WS_VISIBLE | SS_OWNERDRAW,
                            300,50,500,400,hWnd,0,hInst,0);
        
        break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
EndPaint(hWnd, &ps);
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}VOID CALLBACK TimerProc( HWND hwnd, UINT uMsg, UINT_PTR idEvent,  DWORD dwTime)
{
RECT rect;    ++k;
GetClientRect(hwnd, &rect);
InvalidateRect(hwnd, &rect, true);
}

Answer 4

你在定时器的回函数中用BeginPaint和EndPaint是不行的。
一般的方法将绘图还是放在WM_PAINT的处理部分中，而在定时器中用InvalidateRect进行更新。

Answer 5

不好意思
刚刚弄错了
static不能设置itemData
应该通过窗口属性的USERDATA
修改后代码如下
仅供参考
#include <windows.h>COLORREF color[3] = { RGB(255,0,0) ,RGB(0,255,0),RGB(0,0,255)};
HINSTANCE hInst;HWND hWndStatic1;
HWND hWndStatic2;VOID CALLBACK TimerProc( HWND hwnd, UINT uMsg, UINT_PTR idEvent,  DWORD dwTime);
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR  lpCmdLine,int nCmdShow)
{
    MSG msg;
    WNDCLASSEX wcex;
    
    wcex.cbSize = sizeof(WNDCLASSEX);
    wcex.style = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc = WndProc;
    wcex.cbClsExtra = 0;
    wcex.cbWndExtra = 0;
    wcex.hInstance = hInstance;
    wcex.hIcon = 0;
    wcex.hCursor = 0;
    wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName = 0;
    wcex.lpszClassName = "mywin";
    wcex.hIconSm = 0;    RegisterClassEx(&wcex);
    CreateWindow("mywin", "", WS_OVERLAPPEDWINDOW | WS_VISIBLE, 0, 0, 1000, 600, NULL, NULL, hInstance, NULL);    while(GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }    return 0;
}LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    /*int wmId, wmEvent;*/
    PAINTSTRUCT ps;
    HDC hdc;
    char data[30];
    int r;
    int lw,lh;//控件大少
    int fw,fh;//字体大小
    int i;
    RECT rect;
    HFONT hfont;
    HINSTANCE hInst = GetModuleHandle(0);    switch(message)
    {
    
    case WM_DRAWITEM:
DRAWITEMSTRUCT *dis;        dis = (LPDRAWITEMSTRUCT) lParam;
        if(dis->CtlType == ODT_STATIC )
        {
            rect = dis->rcItem;
            lw = dis->rcItem.right - dis->rcItem.left;
            lh = dis->rcItem.bottom - dis->rcItem.top;
            fh = lh;            r = GetWindowText(dis->hwndItem,data,30);
            data[r] = 0 ;
            fw = lw/r;
            hfont = CreateFont ( fh,fw,0,0,700,FALSE,FALSE,FALSE,
                GB2312_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,
                DEFAULT_QUALITY,DEFAULT_PITCH,"myf");
            hfont = (HFONT) SelectObject ( dis->hDC,hfont);
            SetBkMode( dis->hDC, TRANSPARENT);
            rect.right = rect.left + 2*fw;
long lData = GetWindowLong(hWndStatic2, GWL_USERDATA);
            for(i=0; i<r; ++i)
            {
                
SetTextColor( dis->hDC,color[(i+lData)%3]);
                DrawText(dis->hDC, data+2*i, 2, &rect,DT_BOTTOM);
                rect.left += 2*fw;
                rect.right += 2*fw;
            }
            hfont =(HFONT) SelectObject ( dis->hDC,hfont);
            DeleteObject(hfont);
            SetTimer(dis->hwndItem,100,1000,TimerProc);
        }
        break;
case WM_CREATE: hWndStatic1 = CreateWindowA("STATIC","定制标签示例",WS_CHILD | WS_VISIBLE | SS_OWNERDRAW,
0,0,100,50,hWnd,0,hInst,0);
::SetWindowLong(hWndStatic1, GWL_USERDATA, 0);
CreateWindowA("STATIC","标准标签",WS_CHILD | WS_VISIBLE ,
0,50,100,50,hWnd,0,hInst,0);
hWndStatic2 = CreateWindowA("STATIC","12345678901234567890",WS_CHILD | WS_VISIBLE | SS_OWNERDRAW,
300,50,500,400,hWnd,0,hInst,0);
::SetWindowLong(hWndStatic2, GWL_USERDATA, 1);
        
        break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
EndPaint(hWnd, &ps);
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}VOID CALLBACK TimerProc( HWND hwnd, UINT uMsg, UINT_PTR idEvent,  DWORD dwTime)
{
RECT rect;
long lTemp; lTemp = GetWindowLong(hWndStatic1, GWL_USERDATA);
lTemp++;
SetWindowLong(hWndStatic1, GWL_USERDATA, lTemp); lTemp = GetWindowLong(hWndStatic2, GWL_USERDATA);
lTemp++;
SetWindowLong(hWndStatic2, GWL_USERDATA, lTemp); GetClientRect(hwnd, &rect);
InvalidateRect(hwnd, &rect, true);
}