2 replies to this topic

[pnguyen]

Hello everyone,
Please help me on this question.

I want to call a DLL function from my InstallShield script (I am using InstallShield Developer 7.0). The function is defined in a.dll, and a.dll requires some functions in b.dll.

I added a.dll and b.dll into Setup Files/Billboard and then do this in my InstallShield script:
//start
prototype cdecl a.func1(byref string);

....

if (0 != UseDLL(SUPPORTDIR ^ "b.dll")) then MessageBox(...) endif;
if (0 != UseDLL(SUPPORTDIR ^ "a.dll")) then MessageBox(...) endif;

func1(nvString);

UnUseDLL("a.dll");
UnUseDLL("b.dll");
....
//end.

When I debug the script, it fails at the function call
func1(nvString);
with a message box saying that:
Error: 0x....
Failed to load dll: a

Is that because a.dll could not find b.dll on execution the function func1()? Or any possible reason?

I really appreciate your help on this.

-- Phuong Nguyen

[Stefan Krueger]

I guess this is the "Standard" project type so I'm moving the question to that group.

[Stefan Krueger]

Take a look at your a.dll with a tool like Dependency Walker - maybe your function names are mangled.