实现type_name##_get_type函数的前半部 #define_G_DEFINE_TYPE_EXTENDED_BEGIN(TypeName, type_name, TYPE_PARENT, flags) \\staticvoidtype_name##_init (TypeName *self); \staticvoidtype_name##_class_init (TypeName##Class *klass); \staticgpointer type_name##_parent_class = NULL; \staticgint ...
这里就不用G_DEFINE_TYPE了,而是使用G_DEFINE_TYPE_WITH_CODE,而这两个宏本身都是对其它宏的简化,因为前文简单介绍过,这里就不展开了。 其中G_IMPLEMENT_INTERFACE是声明这个类要实现接口,并且指定了接口初始化的函式指针,其展开后如下, #defineG_IMPLEMENT_INTERFACE(TYPE_IFACE, iface_init){\ constGInterface...
#include"VedioMedia.h"#include"IMediaType.h"G_DEFINE_TYPE_WITH_CODE(VcamVedioMedia,vcam_vediomedia,G_TYPE_OBJECT,G_IMPLEMENT_INTERFACE(VCAME_IMEDIATYPE,vcam_media_interface_init))#defineVCAM_SOURCE_GET_PRIVATE(obj) (\G_TYPE_INSTANCE_GET_PRIVATE((obj),VCAM_TYPE_VEDIOMEDIA,VcamVedioMediaPriv)...
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宏GST_ELEMENT_REGISTER_DEFINE结合GST_ELEMENT_REGISTER_DECLARE允许通过调用GST_ELEMENT_REGISTER (my_filter)从插件内或任何其他插件/应用程序注册元素。 Element metadata 元素元数据提供额外的元素信息。 它配置有gst_element_class_set_metadata或gst_element_class_set_static_metadata,它们采用以下参数: ...
58、mple: M111 S6 Set the level of debugging information transmitted back to the host to level 6. The level is the OR of three bits: #define DEBUG_ECHO (1<<0)#define DEBUG_INFO (1<<1)#define DEBUG_ERRORS (1<<2)Thus 6 means send information and errors, but don't echo commands...
我是iOS的新手现在我要解决一个问题 #define strncasecmp _strnicmp 它有一个警告: implicit declaration of function '_strnicmp' is invalid in C99 也有错误: Undefined symbols for architecture armv7: "__strnicmp", referenced from: _AVI_open_input_file in avilib.o ld: symbol(s) not found for arc...
#define TIMER_INTERRUPT_DEBUG 0 #define _TIMERINTERRUPT_LOGLEVEL_ 3 #include "STM32TimerInterrupt.h" // To be included only in main(), .ino with setup() to avoid `Multiple Definitions` Linker Error #include "STM32_ISR_Timer.h" #include <SimpleTimer.h> // https://github.com/jfturcot...
Then the "describe" function can be used to define a test group. describe("website login",func() { }) GSpec will concatenate the cue word and the description argument, so the complete description of the test group becomes: "describe website login". ...