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/*
* Copyright 2004-2006 H2 Group. Licensed under the H2 License, Version 1.0 (http://h2database.com/html/license.html).
*/
#include <windows.h>
#include <odbcinst.h>
#define NAME "h2odbc"
bool isInstalled() {
const int max=10240;
char drivers[max];
WORD len;
if(SQLGetInstalledDrivers(drivers,max,&len)==FALSE) {
return false;
}
char* search=drivers;
while(*search) {
if(!strncmp(search, NAME, strlen(NAME))) {
return true;
}
search += strlen(search)+1;
}
return false;
}
bool uninstall() {
BOOL removeDataSources=FALSE;
BOOL removeAll=FALSE;
DWORD usageCount;
BOOL successfull;
bool result=false;
do {
successfull=SQLRemoveDriver(NAME, removeDataSources, &usageCount);
if(successfull==TRUE) {
result=true;
}
} while(removeAll==TRUE && usageCount>0);
return result;
}
int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
if(!isInstalled()) {
MessageBox(0,
"The ODBC driver is not installed.\n"
"There is nothing to un-install.",
"Uninstall",MB_OK);
} else {
int result=MessageBox(0,
"Un-Install the ODBC driver now?",
"Uninstall",MB_YESNO);
if(result==IDYES) {
if(uninstall()) {
MessageBox(0,
"The driver has been uninstalled successfully.",
"Uninstall",MB_OK);
} else {
MessageBox(0,
"There was an error while un-installing.",
"Uninstall",MB_OK);
}
} else {
MessageBox(0,
"The driver remains installed.",
"Uninstall",MB_OK);
}
}
return 0;
}