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Public Member Functions | Static Public Member Functions

NativeWindowHandle Class Reference

This subclass of WindowHandle exists to allow simple creation of a WindowHandle of the appropriate type to the current OS. More...

Inheritance diagram for NativeWindowHandle:
WindowHandle TypedReferenceCount TypedObject ReferenceCount MemoryBase MemoryBase

List of all members.

Public Member Functions

unsigned int getIntHandle ()
 Returns the OS-specific handle converted to an integer, if this is possible for the particular representation.
OSHandle getOsHandle ()
 Returns the OS-specific handle stored internally to the WindowHandle wrapper.
int getRefCount ()
 Returns the current reference count.
TypeHandle getType ()
int getTypeIndex ()
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.
bool isExactType (TypeHandle handle)
 Returns true if the current object is the indicated type exactly.
bool isOfType (TypeHandle handle)
 Returns true if the current object is or derives from the indicated type.
 output (ostream out)
 ref ()
 Explicitly increments the reference count.
 sendWindowsMessage (unsigned int msg, int wparam, int lparam)
 Call this method on a parent WindowHandle to deliver a Windows message to the current child window, if any.
 setOsHandle (OSHandle os_handle)
 Changes the OS-specific handle stored internally to the WindowHandle wrapper.
bool testRefCountIntegrity ()
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool testRefCountNonzero ()
 Does some easy checks to make sure that the reference count isn't zero, or completely bogus.
bool unref ()
 Explicitly decrements the reference count.

Static Public Member Functions

static TypeHandle getClassType ()
static WindowHandle makeInt (unsigned int window)
 Constructs a new WindowHandle with an int value, which is understood to be either an HWND or a Window, cast to int.
static WindowHandle makeSubprocess (Filename const filename)
 Constructs a new WindowHandle that references a SubprocessWindowBuffer read in another process, with the named pipe filename that it uses for communication.

Detailed Description

This subclass of WindowHandle exists to allow simple creation of a WindowHandle of the appropriate type to the current OS.

This class exists for name scoping only. Don't use the constructor directly; use one of the make_* methods.


Member Function Documentation

static TypeHandle getClassType ( ) [static]

Reimplemented from WindowHandle.

unsigned int getIntHandle ( ) [inherited]

Returns the OS-specific handle converted to an integer, if this is possible for the particular representation.

Returns 0 if it is not.

OSHandle getOsHandle ( ) [inherited]

Returns the OS-specific handle stored internally to the WindowHandle wrapper.

int getRefCount ( ) [inherited]

Returns the current reference count.

TypeHandle getType ( ) [inherited]

Reimplemented in AnimChannelBase.

int getTypeIndex ( ) [inherited]

Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.

This is equivalent to get_type().get_index().

bool isExactType ( TypeHandle  handle) [inherited]

Returns true if the current object is the indicated type exactly.

bool isOfType ( TypeHandle  handle) [inherited]

Returns true if the current object is or derives from the indicated type.

static WindowHandle makeInt ( unsigned int  window) [static]

Constructs a new WindowHandle with an int value, which is understood to be either an HWND or a Window, cast to int.

This method exists for the convenience of Python, which likes to deal with ints; C++ code should use one of the more specific make_x11() or make_win32() methods instead.

static WindowHandle makeSubprocess ( Filename const  filename) [static]

Constructs a new WindowHandle that references a SubprocessWindowBuffer read in another process, with the named pipe filename that it uses for communication.

This is (at present, and maybe always) useful only on the OS X platform, where parenting child windows is particularly problematic.

output ( ostream  out) [inherited]
ref ( ) [inherited]

Explicitly increments the reference count.

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

sendWindowsMessage ( unsigned int  msg,
int  wparam,
int  lparam 
) [inherited]

Call this method on a parent WindowHandle to deliver a Windows message to the current child window, if any.

This is used in the web plugin system to deliver button events detected directly by the browser system into Panda, which is particularly necessary on Vista.

setOsHandle ( OSHandle  os_handle) [inherited]

Changes the OS-specific handle stored internally to the WindowHandle wrapper.

bool testRefCountIntegrity ( ) [inherited]

Does some easy checks to make sure that the reference count isn't completely bogus.

Returns true if ok, false otherwise.

Reimplemented in NodeReferenceCount, CachedTypedWritableReferenceCount, and NodeCachedReferenceCount.

bool testRefCountNonzero ( ) [inherited]

Does some easy checks to make sure that the reference count isn't zero, or completely bogus.

Returns true if ok, false otherwise.

bool unref ( ) [inherited]

Explicitly decrements the reference count.

Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic.) However, see the helper function unref_delete().

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

The return value is true if the new reference count is nonzero, false if it is zero.

Reimplemented in GeomVertexArrayFormat, and GeomVertexFormat.

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