我想用C语言写一个邮件收发的程序,求指教!要怎么下手,求详细解释!谢谢!
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BOOL exSetTestBands(LPBYTE lpLinear, short height, long stride)
{ //set gray and color bands to dib and buffer 0
int i, j, k;
short bwid = 30;
short offx, offy;
//set bands
if (!lpLinear) return FALSE;
for (i=0; i<height; i++)
FillMemory(lpLinear+stride*i, stride, i);
offy = min(256, height/2);
for (i=offy; i<height; i++)
{
FillMemory(lpLinear+stride*i, stride/2, i-offy);
for (k=0, j=stride/2; j<stride; j+=24, k+=18)
{
FillMemory(lpLinear+stride*i+j, 24, k);
}
}
offy = 0;
//black
for (i=offy; i<offy+32; i++)
{
for (j=stride/2; j<stride; j+=3)
*(DWORD *)(lpLinear+stride*i+j) = 0x0;
}
offy = i;
offx = 0;
for (i=0; i<min(256,height/2); i++)
{
for (j=offx; j<offx+bwid; j+=3)
{
*(DWORD *)(lpLinear+stride*i+j) = 0x0;
}
}
//blue
for (i=offy; i<offy+32; i++)
{
for (j=stride/2; j<stride; j+=3)
*(DWORD *)(lpLinear+stride*i+j) = 0xff;
}
offy = i;
offx += bwid;
for (i=0; i<min(256,height/2); i++)
{
for (j=offx; j<offx+bwid; j+=3)
{
*(DWORD *)(lpLinear+stride*i+j) = 0xff;
}
}
//green
for (i=offy; i<offy+32; i++)
{
for (j=stride/2; j<stride; j+=3)
*(DWORD *)(lpLinear+stride*i+j) = 0xff00;
}
offy = i;
offx += bwid;
for (i=0; i<min(256,height/2); i++)
{
for (j=offx; j<offx+bwid; j+=3)
{
*(DWORD *)(lpLinear+stride*i+j) = 0xff00;
}
}
//cyan
for (i=offy; i<offy+32; i++)
{
for (j=stride/2; j<stride; j+=3)
*(DWORD *)(lpLinear+stride*i+j) = 0xffff;
}
offy = i;
offx += bwid;
for (i=0; i<min(256,height/2); i++)
{
for (j=offx; j<offx+bwid; j+=3)
{
*(DWORD *)(lpLinear+stride*i+j) = 0xffff;
}
}
//red
for (i=offy; i<offy+32; i++)
{
for (j=stride/2; j<stride; j+=3)
*(DWORD *)(lpLinear+stride*i+j) = 0xff0000;
}
offy = i;
offx += bwid;
for (i=0; i<min(256,height/2); i++)
{
for (j=offx; j<offx+bwid; j+=3)
{
*(DWORD *)(lpLinear+stride*i+j) = 0xff0000;
}
}
//magenta
for (i=offy; i<offy+32; i++)
{
for (j=stride/2; j<stride; j+=3)
*(DWORD *)(lpLinear+stride*i+j) = 0xff00ff;
}
offy = i;
offx += bwid;
for (i=0; i<min(256,height/2); i++)
{
for (j=offx; j<offx+bwid; j+=3)
{
*(DWORD *)(lpLinear+stride*i+j) = 0xff00ff;
}
}
//yellow
for (i=offy; i<offy+32; i++)
{
for (j=stride/2; j<stride; j+=3)
*(DWORD *)(lpLinear+stride*i+j) = 0xffff00;
}
offy = i;
offx += bwid;
for (i=0; i<min(256,height/2); i++)
{
for (j=offx; j<offx+bwid; j+=3)
{
*(DWORD *)(lpLinear+stride*i+j) = 0xffff00;
}
}
//white
for (i=offy; i<offy+32; i++)
{
for (j=stride/2; j<stride; j+=3)
*(DWORD *)(lpLinear+stride*i+j) = 0xffffff;
}
offy = i;
offx += bwid;
for (i=0; i<min(256,height/2); i++)
{
for (j=offx; j<offx+bwid; j+=3)
{
*(DWORD *)(lpLinear+stride*i+j) = 0xffffff;
}
}
//repeat
offx += bwid;
while (stride/2>offx) //remain
{
for (i=0; i<min(256,height/2); i++)
{
memcpy(lpLinear+stride*i+offx, lpLinear+stride*i, stride/2-offx);
}
offx += bwid*8;
}
return 1;
}
BOOL exOutReport(HDC hPr, LPBITMAPINFOHEADER lpbi, LPSTR lpdib)
{
char szLine[1024];
char str[50];
int startx;
SIZE sSize;
RECT rect;
HFONT hFont, hOldFont;
int Horz, Vert;
float XZoom, YZoom;
TEXTMETRIC TextMetric; /* information about character size */
Horz = GetDeviceCaps(hPr, HORZRES);
XZoom = (float)Horz/2400; //in standard of 300dpi for A4
Vert = GetDeviceCaps(hPr, VERTRES);
YZoom = (float)Vert/3300;
rect.top = (int)(600*YZoom);
rect.bottom = (int)(2600*YZoom);
// Set hospital name
hFont = CreateFont((int)(90*YZoom), (int)(35*XZoom), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL);
hOldFont = (HFONT)SelectObject(hPr, hFont);
GetTextMetrics(hPr, &TextMetric);
Rectangle(hPr, (int)(100*XZoom), (int)(155*YZoom), (int)((Horz-100)*XZoom), (int)(156*YZoom)); //underline
strcpy(szLine, "中国医科院北京肿瘤医院");
GetTextExtentPoint32(hPr, szLine, strlen(szLine), &sSize);
startx = (Horz-sSize.cx)/2;
TextOut(hPr, startx, (int)(50*YZoom), (LPSTR)szLine, strlen(szLine));
SelectObject(hPr, hOldFont);
DeleteObject(hFont);
// set date contents
hFont = CreateFont((int)(62*YZoom), (int)(22*XZoom), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL);
hOldFont = (HFONT)SelectObject(hPr, hFont);
//year-month-date
strcpy(szLine, "打印日期: ");
_strdate(str);
str[2] = 0;
str[5] = 0;
str[8] = 0;
strcat(szLine, str+6);
strcat(szLine, "-");//"年");
strcat(szLine, str);
strcat(szLine, "-");//"月");
strcat(szLine, str+3);
//strcat(szLine,"日");
TextOut(hPr, (int)(1600*XZoom), (int)(200*YZoom), (LPSTR)szLine, strlen(szLine));
//delete font
SelectObject(hPr, hOldFont);
DeleteObject(hFont);
rect.right = (int)((float)lpbi->biWidth/lpbi->biHeight
*(rect.bottom-rect.top));
rect.left = (int)((Horz-rect.right)/2+100*XZoom);
rect.right += rect.left;
if (rect.left < 0)
{
rect.left = (int)(100*XZoom);
rect.right = (int)(2200*XZoom);
rect.bottom = (int)((float)lpbi->biHeight/lpbi->biWidth
*(rect.right-rect.left))+rect.top;
}
StretchDIBits (hPr, // DestDC
rect.left, // DestX
rect.top, // DestY
rect.right - rect.left, // DestWidth
rect.bottom - rect.top, // DestHeight
0, // SrcX
0, // SrcY
(int)lpbi->biWidth, // SrcWidth
(int)lpbi->biHeight, // SrcHeight
lpdib, // lpBits
(LPBITMAPINFO) lpbi, // lpBitInfo
DIB_RGB_COLORS, // wUsage
SRCCOPY); // dwROP
return 1;
}
void COkMfcView::OnPrintpic()
{
// TODO: Add your command handler code here
//打印图像
CPrintDialog cpd = (FALSE, PD_ALLPAGES);
HDC hPr;
CDC cdc;
DOCINFO docinfo;
cpd.DoModal();
hPr = cpd.GetPrinterDC();
if (!hPr) return;
cdc.Attach(hPr);
docinfo.cbSize = sizeof(DOCINFO);
docinfo.lpszDocName = "prnfile";
docinfo.lpszOutput = NULL;
docinfo.lpszDatatype = NULL;
docinfo.fwType = 0;
if (cdc.StartDoc(&docinfo) == -1) return;
cdc.StartPage();
exOutReport(hPr, lpbi, lpdib);
cdc.EndPage();
cdc.EndDoc();
}
void COkMfcView::OnMouseMove(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
RECT rcRect;
POINT pt;
int x,y;
char szString[100]={0};
if (bActive)
return;
rcRect.left=LOWORD(lScrnOffset);
rcRect.top=HIWORD(lScrnOffset);
rcRect.right=rcRect.left+lpbi->biWidth;
rcRect.bottom=rcRect.top+lpbi->biHeight;
MapWindowPoints((CWnd*)HWND_DESKTOP,(LPPOINT)&rcRect,2);
pt.x = point.x;
pt.y = point.y;
MapWindowPoints((CWnd*)HWND_DESKTOP,(LPPOINT)&pt,1);
x=pt.x-rcRect.left;
y=pt.y-rcRect.top;
if( (x>=0) && (x<lpbi->biWidth) && (y>=0) && (y<lpbi->biHeight) )
{
WORD gray;
WORD r,g,b;
LPBYTE lpPixel;
long stride;
long form,bufform;
BYTE byBits;
char szSource[32];
//1. screen
form=okSetCaptureParam(hBoard,CAPTURE_SCRRGBFORMAT,GETCURRPARAM); //-1
byBits=(BYTE)HIWORD(form);
if( okGetCaptureStatus(hBoard,0) ) { //capturing
lpPixel=(LPBYTE)okGetTargetInfo(hBoard, SCREEN, 0, NULL, NULL, &stride);
lpPixel+=pt.x*byBits/8+pt.y*stride;
strcpy(szSource,"SCREEN");
}
else { //forzen
//wbytes=((((lpbi->biWidth*bits)+31)&~31)>>3);//bmp need 4 byte align
byBits=(BYTE)lpbi->biBitCount;
stride=(lpbi->biWidth*byBits/8+3)/4*4; //dword align
lpPixel=(LPBYTE)lpdib+x*byBits/8+(lpbi->biHeight-y-1)*stride;
strcpy(szSource,"DIB");
}
if(byBits<=8) { //8 bits
gray=*lpPixel;
//gray=(BYTE)okReadPixel(hBoard,SCREEN,0,x,y-10);
//okWritePixel(hBoard,SCREEN,0,x,y-10,0x00ffff);
//sprintf(szString,"(%4i,%4i) = %s (%3i); ",pt.x-rcRect.left,pt.y-rcRect.top,szSource,gray);
}
else {
WORD wPixel;
DWORD dwPixel;
if(LOWORD(form)==FORM_RGB555) {
wPixel=((LPWORD)lpPixel)[0];
b= (wPixel&0x1f)<<3;
g= ((wPixel>>5)&0x1f)<<3;
r= ((wPixel>>10)&0x1f)<<3;
}
else if(byBits==16) {
wPixel=((LPWORD)lpPixel)[0];
b= (wPixel&0x1f)<<3;
g= ((wPixel>>5)&0x3f)<<2;
r= ((wPixel>>11)&0x1f)<<3;
}
else if(byBits>=24) {
dwPixel=((LPDWORD)lpPixel)[0];
//ShowCursor(0); //
//dwPixel=okReadPixel(hBoard,SCREEN,0,x,y); //$
//okWritePixel(hBoard,SCREEN,0,x,y,0x00ffff);//$
//ShowCursor(1);
b= (BYTE)(dwPixel&0xff);
g= (BYTE)(dwPixel>>8)&0xff;
r= (BYTE)(dwPixel>>16)&0xff;
}
sprintf(szString,"(%4i,%4i) = %s (%3i,%3i,%3i); ",pt.x-rcRect.left,pt.y-rcRect.top,
szSource,r,g,b);
}
//2. buffer
bufform=okSetCaptureParam(hBoard,CAPTURE_BUFRGBFORMAT,GETCURRPARAM); //-1
if( LOWORD(bufform)!= LOWORD(form) ) {
long dwPixel;
dwPixel=okReadPixel(hBoard,BUFFER,-1,(short)x,(short)y); // read current frame
switch (LOWORD(bufform) ) {
case FORM_GRAY8:
case FORM_GRAY888:
case FORM_GRAY8888:
//dwPixel&=0xff;
case FORM_GRAY10:
//dwPixel&=0x3ff;
case FORM_GRAY12:
//dwPixel&=0xfff;
case FORM_GRAY16: //gray
//dwPixel&=0xffff;
sprintf(szString+strlen(szString)," BUFFER (%5i)",dwPixel);
break;
//color
case FORM_RGB555:
b= (WORD)((dwPixel&0x1f)<<3);
g= (WORD)(((dwPixel>>5)&0x1f)<<3);
r= (WORD)(((dwPixel>>10)&0x1f)<<3);
sprintf(szString+strlen(szString)," BUFFER (%4i,%4i,%4i)",r,g,b);
break;
case FORM_RGB888:
case FORM_RGB8888:
case FORM_RGB8886:
b= (WORD)(dwPixel&0xff);
g= (WORD)((dwPixel>>8)&0xff);
r= (WORD)((dwPixel>>16)&0xff);
if(LOWORD(bufform)==FORM_RGB8886) {
b=(b<<2) | (WORD)((dwPixel>>24)&0x3);
g=(g<<2) | (WORD)((dwPixel>>26)&0x3);
r=(r<<2) | (WORD)((dwPixel>>28)&0x3);
}
sprintf(szString+strlen(szString)," BUFFER (%4i,%4i,%4i)",r,g,b);
break;
default:
//if(LOWORD(bufform)==FORM_RGB565) {
b= (WORD)((dwPixel&0x1f)<<3);
g= (WORD)(((dwPixel>>5)&0x3f)<<2);
r= (WORD)(((dwPixel>>11)&0x1f)<<3);
sprintf(szString+strlen(szString)," BUFFER (%4i,%4i,%4i)",r,g,b);
break;
}
}
}
sBar->SetPaneText(0, szString);
return;
}
void COkMfcView::OnSyshelp()
{
// TODO: Add your command handler code here
//系统帮助
::WinHelp(hWnd, "okHelp.hlp", HELP_HELPONHELP, 0);
}
void COkMfcView::OnCorr()
{
// TODO: Add your command handler code here
//相关内容
::WinHelp(hWnd, "okdemo.hlp", HELP_FINDER, 0);
}
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