ThumbnailViewGetCommandState Method (THUMBNAILVIEWCOMMAND, Boolean, Boolean)

public void GetCommandState(
	THUMBNAILVIEWCOMMAND Command,
	ref bool Checked,
	ref bool Enabled
)

Public Sub GetCommandState ( 
	Command As THUMBNAILVIEWCOMMAND,
	ByRef Checked As Boolean,
	ByRef Enabled As Boolean
)

public:
void GetCommandState(
	THUMBNAILVIEWCOMMAND Command, 
	bool% Checked, 
	bool% Enabled
)

The Enabled parameter returns whether the command identified by CommandID is currently enabled or not. If the related toolbar button is an type on / off type (e.g. IVC_RECMODULE_OMNIFONT_* commands), you can use the Checked parameter to query its current state. This function is useful if your application implements its own menu or toolbar which requires control state refreshing. You can also use this method to verify if a particular command can be executed using the ExecuteCommand method or not.