獲取印表機引數
1、印表機的解析度(象素/英寸)
X方向解析度=GetDeviceCaps(Printer->Handle,LOGPIXELSX);
Y方向解析度=GetDeviceCaps(Printer->Handle,LOGPIXELSY);
2、列印紙的大小(以象素為單位)
通過Printer的PageWidth和PageHeight屬性可得到可列印範圍的象素數
物理象素數用以下API得到:
寬=GetDeviceCaps(Printer->Handle,PHYSICALWIDTH)
高=GetDeviceCaps(Printer->Handle,PHYSICALHEIGHT)
物理象素數總是比可列印範圍的象素數要大一些(去掉頁邊距等)。
3、列印紙的實際大小(以英寸為單位)
列印紙的實際大小=物理象素數/解析度;
紙的寬度=(double)(GetDeviceCaps(Printer->Handle,PHYSICALWIDTH)/
GetDeviceCaps(Printer->Handle,LOGPIXELSX));
紙的高度=(double)(GetDeviceCaps(Printer->Handle,PHYSICALHEIGHT)/
GetDeviceCaps(Printer->Handle,LOGPIXELSY));
注:1 inch=2.54 cm
連線印表機:
HDC hdcPrint;//定義一個裝置環境控制代碼
//定義一個列印作業
static DOCINFO di={ sizeof(DOCINFO), "printer", NULL};
char *szDevice;
szDevice = (char *)strPrinterName.c_str();//印表機模式名
if (NULL != szDevice)
{
//建立一個印表機裝置控制代碼
hdcPrint = CreateDC(NULL, szDevice, NULL, NULL);
if(hdcPrint != 0)
{
//開始執行列印作業
if(StartDoc(hdcPrint, &di) > 0)
{
//印表機走紙,開始列印
StartPage(hdcPrint);
//儲存印表機裝置控制代碼
SaveDC(hdcPrint);
//實際列印
CImage image;
if(image.Load("C:\\1.bmp") == S_OK)
{
CString str = CAppConfig::m_strPaperType.c_str();
str.MakeUpper();
double fBmpWidth = 0.0;
double fBmpHeight = 0.0;
if (str.GetLength() == 0)
{
return -1;
}
int X = GetDeviceCaps(hdcPrint, LOGPIXELSX);
int Y = GetDeviceCaps(hdcPrint, LOGPIXELSY);
if (str.Compare("A4") == 0)
{
/*fBmpWidth = int((m_nFilmW - 0.24) * CAppConfig::m_PrinterDPI / 2)-100;
fBmpHeight = int((m_nFilmH - 0.3) * CAppConfig::m_PrinterDPI / 2)-25;*/
fBmpWidth = int((m_nFilmW - 0.24) * X)-100;
fBmpHeight = int((m_nFilmH - 0.3) * Y)-25;
}
else if (str.Compare("A3") == 0)
{
/*fBmpWidth = int((m_nFilmW - 0.36) * CAppConfig::m_PrinterDPI / 2)-100;
fBmpHeight = int((m_nFilmH - 0.36) * CAppConfig::m_PrinterDPI / 2)-25;*/
fBmpWidth = int((m_nFilmW - 0.36) * X)-100;
fBmpHeight = int((m_nFilmH - 0.36) * Y)-25;
}
image.StretchBlt(hdcPrint, CRect(CAppConfig::m_xPos, CAppConfig::m_yPos, fBmpWidth, fBmpHeight), SRCCOPY);
}
//恢復印表機裝置控制代碼
RestoreDC(hdcPrint, -1);
//印表機停紙,停止列印
EndPage(hdcPrint);
//結束一個列印作業
EndDoc(hdcPrint);
//MessageBox("列印完畢!","提示",MB_ICONINFORMATION);
}
//用API函式DeleteDC銷燬一個印表機裝置控制代碼
DeleteDC(hdcPrint);
}