小编Ali*_*scu的帖子

我正在使用 gtk+ 2.0 用 C 语言开发一个项目。

我必须检查用户是否按下了左键单击图像。我想在按下左键时调用一个函数并获取鼠标的位置，但是我该怎么做呢？

我有这个代码序列:

printf("%p\n", gameGUI);
printf("label %p\n", gameGUI->labelRoundType);
gui_setRoundType(gameGUI->labelRoundType,
                 gameGUI->game->rounds[roundId]);
printf("label %p\n", gameGUI->labelRoundType);
printf("%p\n", gameGUI);

函数gui_setRoundType的代码.

int gui_setRoundType(GtkWidget *roundTypeLabel, struct Round *round)
{
    if (round == NULL)
        return ROUND_NULL;
    if (roundTypeLabel == NULL)
        return POINTER_NULL;

    char type[1] = { '\0' };
    intToChar(round->roundType, type);
    gtk_label_set_text(GTK_LABEL(roundTypeLabel), type);

    return NO_ERROR;
}

GameGUI结构的代码:

struct GameGUI {
    struct Game *game;
    struct Select *select;
    struct PlayerCards *playerCards;
    struct PlayersGUI *playersGUI;
    struct CardsFromTable *cardsFromTable;
    struct BidGUI *bidGUI;
    GtkWidget *windowTable;
    GtkWidget *fixedTable;
    GtkWidget *buttonShowScore;
    GtkWidget *imageTrump;
    GtkWidget *labelRoundType;
    GtkWidget *labelNoOfBids; …