Hi,
I'm trying to get my first Windows DLL external to work.
It compiles successfully, but the externalFunctions and externalHandlers return empty. I set the 'externals' property, and re-open the stack afterwards.
I read in the DLL Article about how using the wrong compiler could mess things up. I'm currently using Bloodshed Dev C++, in which the code compiles without problems.
I also tried Microsoft Visual Studio, but externalFunctions/Handlers still return empty. Which compiler is recommended?
Here's the code:
#include "XCMDGlue.h" #include "windows.h" // GetComputerName(), SetComputerName() #include <iostream.h> #include <stdio.h>
void XCabort();
void XGetName(char *args[], int nargs, char **retstring, Bool *pass, Bool *error);
void XSetName(char *args[], int nargs, char **retstring, Bool *pass, Bool *error);
char Xname[] = "Test External";
void XCabort(){
fprintf(stderr, "external abort");
} Xternal Xtable[] = {
{"xsetcomputername", XCOMMAND, 0, XSetName, XCabort},
{"xgetcomputername", XFUNCTION, 0, XGetName, XCabort},
{"", XNONE, 0, NULL, NULL}
};void XGetName(char *args[], int nargs, char **retstring, Bool *pass, Bool *error)
{
char buffer[MAX_COMPUTERNAME_LENGTH+1];
DWORD dwLength;
BOOL blnSuccess;
dwLength = MAX_COMPUTERNAME_LENGTH+1;
blnSuccess = GetComputerName(buffer, &dwLength);
*pass = False; // don't pass the command up the chain
if (blnSuccess)
{
*error = False; // call was successful
//*retstring = istrdup (buffer);
sprintf(*retstring,buffer);
}
else
{
*error = True; // call failed
//*retstring = istrdup ("error: GetComputerName failed");
sprintf(*retstring,"error: GetComputerName failed");
}
}void XSetName(char *args[], int nargs, char **retstring, Bool *pass, Bool *error)
{
char buffer[MAX_COMPUTERNAME_LENGTH+1];
BOOL blnSuccess = False;
// get the new name from the array of arguments
if (1 == nargs)
{
blnSuccess = SetComputerName(args[0]);
} *pass = False; // don't pass the command up the chain
if (blnSuccess)
{
*error = False; // call was successful
//*retstring = istrdup (buffer);
sprintf(*retstring,buffer);
}
else
{
*error = True; // call failed
//*retstring = istrdup ("error: SetComputerName failed");
sprintf(*retstring,"error: SetComputerName failed");
}
}
Thanks!
Tomas Franz�n Lighthead Software http://www.lightheadsw.com/
I'm listening to The Hives - Walk Idiot Walk _______________________________________________
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