1,在调用窗体里,Unit1.cpp里引入
#include "WaterMark.h"
2,在窗体加载事件里加载动态库:
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
//初始化水印
if(!LoadWaterMark())
{
ShowMessage("加载水印失败！");
}
}
3,触发添加水印
void __fastcall TForm1::Button1Click(TObject *Sender)
{
//添加水印
AnsiString imgPath="D:\\img\\tempImg.jpg";
int suc=WaterMarkEmbed(s.c_str(),"water.bmp");
//返回：1成功
//0失败
//-1文件类型不对,或者已经加密过
//-2水印文件不符合，太大
//-3文件有问题,或者文件名不对,文件要带扩展名
}
拷贝WaterMark.cpp和WaterMark.h文件到工程目录中
打开工程文件,点击菜单栏中工程->添加到工程,选中刚拷贝过来的那两个文件
WaterMark.cpp
#include <vcl.h>
#pragma hdrstop
#include "WaterMark.h"
#include <stdio.h>
int (WINAPI *lpfnWaterMarkEmbed)(char * FilePath,char * WaterMarkFilePath);
int (WINAPI *lpfnPicIsTamper)(char* FilePath);
bool LoadWaterMark()
{
RMDLL=LoadLibrary("WaterMarkDll.dll");
if (!RMDLL)
return false;
(FARPROC )lpfnWaterMarkEmbed=GetProcAddress(RMDLL,"_WaterMarkEmbed@8"); //加载图片
(FARPROC )lpfnPicIsTamper=GetProcAddress(RMDLL,"_PicIsTamper@4"); // 图片识别用
return true;
}
//添加水印
int WaterMarkEmbed(char * FilePath,char * WaterMarkFilePath)
{
return lpfnWaterMarkEmbed(FilePath,WaterMarkFilePath);
}
//验证
int PicIsTamper(char* FilePath)
{
return lpfnPicIsTamper(FilePath);
}
#pragma package(smart_init)
WaterMark.h
#ifndef WaterMarkH
#define WaterMarkH
HANDLE RMDLL;
bool LoadWaterMark(); //加载水印模块动态连接库
int WaterMarkEmbed(char * FilePath,char * WaterMarkFilePath);
int PicIsTamper(char* FilePath);
#endif
[color=red]不提供下载[/color],下载链接为我自己备份使用,内带防篡改图片验证程序,WaterMarkDll.dll和一张水印图,压缩包有密码,请勿下载
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