imgsample.cpp

《医学图象的远程传输系统》

#include <windows.h>
#include <stdio.h>

#include "ImgSample.h"
#include "..\Defines.h"

int g_ImgCount[4]={0,0,0,0};
int g_ImgIndex[4]={-1,-1,-1,-1};
char g_ErrorMsg[200][4]={"","","",""};
char g_IniFilePath[MAX_PATH]="";

BOOL APIENTRY DllMain(HANDLE hModule,DWORD dwReason,LPVOID lpReserved){
	if (GetModuleFileName((HINSTANCE)hModule,g_IniFilePath,MAX_PATH)){
		strcat(g_IniFilePath,".ini");
	}
	return TRUE;
}

BOOL ISInit(const int Channel){
	char SectionName[10];
	sprintf(SectionName,"Channel%d",Channel);
	g_ImgCount[Channel]=GetPrivateProfileInt(SectionName,"Count",0,g_IniFilePath);
	if (g_ImgCount[Channel]<=0){
		sprintf(g_ErrorMsg[Channel],"ImgSample: Channel %d file %s not found or ImgCount not correct!",Channel,g_IniFilePath);
		return FALSE;
	}
	return TRUE;
}

BOOL ISGetImg(const int Channel,BYTE* pBmp){
	if (g_ImgCount[Channel]<=0 || pBmp==NULL){
		sprintf(g_ErrorMsg[Channel],"ImgSample: Channel %d ImgCount not correct or memory myght not allocated!",Channel);
		return FALSE;
	}
	g_ImgIndex[Channel]++;
	if (g_ImgIndex[Channel]>=g_ImgCount[Channel]){
		g_ImgIndex[Channel]=0;
	}
	char SectionName[10];
	sprintf(SectionName,"Channel%d",Channel);
	char ItemName[10];
	sprintf(ItemName,"Img%d",g_ImgIndex[Channel]);
	char strFileName[MAX_PATH];
	if (GetPrivateProfileString(SectionName,ItemName,NULL,strFileName,MAX_PATH,g_IniFilePath)==0){
		sprintf(g_ErrorMsg[Channel],"ImgSample: Channel %d section %s not found or filename not correct!",Channel,SectionName);
		return FALSE;
	}
	HANDLE hFile=CreateFile(strFileName,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
	if (hFile==INVALID_HANDLE_VALUE){
		sprintf(g_ErrorMsg[Channel],"ImgSample: Channel %d open file %s error!",Channel,strFileName);
		return FALSE;
	}
	DWORD nFileSize=GetFileSize(hFile,NULL);
	if (nFileSize==INVALID_FILE_SIZE){
		CloseHandle(hFile);
		sprintf(g_ErrorMsg[Channel],"ImgSample: Channel %d error to get size of file %s !",Channel,strFileName); 
		return FALSE;
	}
	if (nFileSize>MAX_BMP_SIZE){
		CloseHandle(hFile);
		sprintf(g_ErrorMsg[Channel],"ImgSample: Channel %d file %s too large to read!",Channel,strFileName);
		return FALSE;
	}
	DWORD dwRead;
	if (ReadFile(hFile,pBmp,nFileSize,&dwRead,NULL)==0){
		CloseHandle(hFile);
		sprintf(g_ErrorMsg[Channel],"ImgSample: Channel %d error when read file %s !",Channel,strFileName);
		return FALSE;
	}
	if (dwRead!=nFileSize){
		CloseHandle(hFile);
		sprintf(g_ErrorMsg[Channel],"ImgSample: Channel %d read file %s size not correct!",Channel,strFileName);
		return FALSE;
	}
	CloseHandle(hFile);
	return TRUE;
}

LPCTSTR ISGetLastError(const int Channel){
	return g_ErrorMsg[Channel];
}