CLR_CreateObject is only for instantiating a class. Static methods like Math.Tan are difficult to call via COM as it requires...
- getting an instance of the Type object representing the type which contains the method,
- initializing a SAFEARRAY of VARIANTs containing parameters,
- calling the appropriate overload of Type.InvokeMember via a complicated DllCall, and
- interpreting the result VARIANT as necessary.
For instance, this is a slightly modified (for readability) extract from CLR.ahk:
Code:
; pApp is a pointer to an AppDomain as returned by CLR_GetDefaultDomain()
p_App := COM_QueryInterface(pApp,"{05F696DC-2B29-3663-AD8B-C4389CF2A713}")
...
; Get typeof(Assembly) for calling static methods. (p_App->GetType()->Assembly->GetType())
DllCall(NumGet(NumGet(p_App+0)+40),"uint",p_App,"uint*",p_Type)
DllCall(NumGet(NumGet(p_Type+0)+80),"uint",p_Type,"uint*",p_Asm)
COM_Release(p_Type)
DllCall(NumGet(NumGet(p_Asm+0)+40),"uint",p_Asm,"uint*",p_Type)
COM_Release(p_Asm)
; Initialize VARIANTs & SAFEARRAY(VARIANT) for method args.
VarSetCapacity(vArg,16,0), NumPut(8,vArg), NumPut(psLib,vArg,8)
VarSetCapacity(vRet,16,0)
VarSetCapacity(rArgs,24,0), NumPut(1,NumPut(&vArg,NumPut(16,NumPut(1,rArgs))+4))
; Attempt to load from file. (Call Assembly.LoadFrom().)
hr:=DllCall(NumGet(NumGet(p_Type+0)+228),"uint",p_Type
,"uint",COM_SysString(ws,"LoadFrom"),"int",0x118
,"uint",0,"int64",1,"int64",0,"uint",&rArgs,"uint",&vRet)
The equivalent C# would be:
Code:
Assembly.LoadFrom(sLibrary)
It's generally easier to use C#.
Code:
helper_code=
(
class helper {
public double Tan(double a) {
return System.Math.Tan(a);
}
}
)
CLR_Start()
if !asm := CLR_CompileC#(helper_code, "")
ExitApp
hlp := CLR_CreateObject(asm, "helper")
MsgBox % COM_Invoke(hlp, "Tan", 1.0)
MsgBox % COM_Invoke(hlp, "Tan", 0.5)
...or in this case, AutoHotkey.
Code:
SetFormat, FloatFast, 0.14 ; for results closer to the above
MsgBox % Tan(1.0)
MsgBox % Tan(0.5)
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