AutoIT Help part 109 pot

Example If Not IsDeclared "a" then MsgBox0,"", "$a is NOT declared" ; $a has never been assigned EndIf $a=1 If IsDeclared "a" then MsgBox0,"", "$a IS declared" ; due to previous $a=1

Example

If Not IsDeclared ("a") then

MsgBox(0,"", "$a is NOT declared") ; $a has never been assigned

EndIf

$a=1

If IsDeclared ("a") then

MsgBox(0,"", "$a IS declared" ) ; due to previous $a=1 assignment

EndIf

Function Reference

IsDllStruct

Checks if a variable is a DllStruct type

IsDllStruct ( variable )

Parameters

variable The variable/expression to check

Return Value

Success: Returns 1

Failure: Returns 0 if expression is not DllStruct type as return by DllStructCreate

Remarks

None

Related

DllStructCreate

Example

$struct = DllStructCreate("char[256]")

$x = IsDllStruct($struct)

Function Reference

IsFloat

Checks if a variable or expression is a float-type IsFloat ( variable )

Parameters

variable The variable or expression to check

Return Value

Success: Returns 1

Failure: Returns 0 if expression is not float type

Remarks

See examples

Related

IsArray, IsInt, IsString, IsNumber, IsBool, IsHWnd, StringIsFloat

Example

IsFloat(3.14159) ;returns 1

IsFloat(3.000) ;returns 0 since value is integer 3

IsFloat(1/2 - 5) ;returns 1

IsFloat(1.5e3) ;returns 0 since 1.5e3 = 1500

IsFloat("12.345") ;returns 0 since is a string

Function Reference

IsHWnd

Checks if a variable's base type is a pointer and window handle

IsHWnd ( variable )

Parameters

variable The variable/expression to check

Return Value

Success: Returns 1 if the expression is a pointer type AND a valid window handle Failure: Returns 0 if expression is not a pointer OR not a valid window handle

Remarks

Related

IsArray, IsFloat, IsInt, IsPtr, IsString, IsNumber, IsBool

Example

Run("notepad.exe")

Local $hWnd = WinGetHandle("[CLASS:Notepad]")

If IsHWnd($hWnd) Then

MsgBox(4096, "", "It's a valid HWND")

Else

MsgBox(4096, "", "It's not an HWND")

EndIf

Function Reference

IsHWnd

Checks if a variable's base type is a pointer and window handle

IsHWnd ( variable )

Parameters

variable The variable/expression to check

Return Value

Success: Returns 1 if the expression is a pointer type AND a valid window handle Failure: Returns 0 if expression is not a pointer OR not a valid window handle

Remarks

Related

IsArray, IsFloat, IsInt, IsPtr, IsString, IsNumber, IsBool

Example

Run("notepad.exe")

Local $hWnd = WinGetHandle("[CLASS:Notepad]")

If IsHWnd($hWnd) Then

MsgBox(4096, "", "It's a valid HWND")

Else

MsgBox(4096, "", "It's not an HWND")

EndIf

Function Reference

IsInt

Checks if a variable or expression is an integer type IsInt ( variable )

Parameters

variable The variable/expression to check

Return Value

Success: Returns 1

Failure: Returns 0 if expression is not integer

Remarks

IsInt(7.5 - 2.5) returns 1 (meaning true)

Related

IsArray, IsFloat, IsString, IsNumber, IsBool, IsHWnd, StringIsInt

Example

IsInt(-12345) ;returns 1

IsInt(3.0000) ;returns 1

IsInt("5432") ;returns 0 since is a string

IsInt(7.5 - 4.5) ;returns 1 since evaluates to integer 3

Function Reference

IsKeyword

Checks if a variable is a keyword (for example, Default)

IsKeyword ( variable )

Parameters

variable The variable to check

Return Value

Success: Returns 1 if variable is a keyword

Failure: Returns 0 if variable is not a keyword

Remarks

Related

Default

Example

$a = default

If IsKeyword($a) Then MsgBox(0,"Ok", "Yes it is")

Function Reference

IsBool

Checks if a variable's base type is boolean

IsBool ( variable )

Parameters

variable The variable/expression to check

Return Value

Success: Returns 1

Failure: Returns 0 if expression is not boolean type

Remarks

Related

IsArray, IsFloat, IsInt, IsNumber, IsString, IsHWnd

Example

$b = true

If IsBool($b) Then Msgbox(0,"Success", "$b is a boolean variable")

Function Reference

IsDeclared

Check if a variable has been declared

IsDeclared ( expression )

Parameters

expression string representing name of the variable to be checked

Return Value

Success: Returns 1 for Global variable or variable declared outside functions Special: -1 for Local variable

Failure: Return 0 when no variable can be found

Remarks

If there is a need to use IsDeclared() to check that a variable exists, then in most situations Assign() should be used to create/write to the variable and Eval() should

be used to read from the variable

Related

Assign, Eval

Example

If Not IsDeclared ("a") then

MsgBox(0,"", "$a is NOT declared") ; $a has never been assigned

EndIf

$a=1

If IsDeclared ("a") then

MsgBox(0,"", "$a IS declared" ) ; due to previous $a=1 assignment

EndIf

Function Reference

IsDllStruct

Checks if a variable is a DllStruct type

IsDllStruct ( variable )

Parameters

variable The variable/expression to check

Return Value

Success: Returns 1

Failure: Returns 0 if expression is not DllStruct type as return by DllStructCreate

Remarks

None

Related

DllStructCreate

Example

$struct = DllStructCreate("char[256]")

$x = IsDllStruct($struct)

Function Reference

IsFloat

Checks if a variable or expression is a float-type

IsFloat ( variable )

Parameters

variable The variable or expression to check

Return Value

Success: Returns 1

Failure: Returns 0 if expression is not float type

Remarks

See examples

Related

IsArray, IsInt, IsString, IsNumber, IsBool, IsHWnd, StringIsFloat

Example

IsFloat(3.14159) ;returns 1

IsFloat(3.000) ;returns 0 since value is integer 3

IsFloat(1/2 - 5) ;returns 1

IsFloat(1.5e3) ;returns 0 since 1.5e3 = 1500

IsFloat("12.345") ;returns 0 since is a string

Function Reference

IsHWnd

Checks if a variable's base type is a pointer and window handle IsHWnd ( variable )

Parameters

variable The variable/expression to check

Return Value

Success: Returns 1 if the expression is a pointer type AND a valid window handle Failure: Returns 0 if expression is not a pointer OR not a valid window handle

Remarks

Related

IsArray, IsFloat, IsInt, IsPtr, IsString, IsNumber, IsBool

Example

Run("notepad.exe")

Local $hWnd = WinGetHandle("[CLASS:Notepad]")

If IsHWnd($hWnd) Then

MsgBox(4096, "", "It's a valid HWND")

Else

MsgBox(4096, "", "It's not an HWND")

EndIf

Function Reference

IsInt

Checks if a variable or expression is an integer type

IsInt ( variable )

Parameters

variable The variable/expression to check